Buffer overflow in Artifex Mupdf
CVE-2026-7233
A vulnerability was determined in Artifex MuPDF up to 1.28.0. The impacted element is the function fz_subset_cff_for_gids of the file subset-cff.c of the component CFF Index Handler. This manipulation causes out-of-bounds read. The attack…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (4.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Artifex Mupdf — versions 1.0, 1.1, 1.2
Weakness classification (CWE)
References
- VDB-359840 | Artifex MuPDF CFF Index subset-cff.c fz_subset_cff_for_gids out-of-bounds (Exploit, technical-description, Third Party Advisory, VDB Entry, vdb-entry, Mitigation)
- VDB-359840 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #802590 | Artifex MuPDF 1.28 Out-of-Bounds Read (Exploit, Third Party Advisory, VDB Entry, Mitigation, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Third Party Advisory, Mitigation)
- cna@vuldb.com (Exploit, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-7233?
- CVE-2026-7233 is a low-severity vulnerability in Artifex Mupdf, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-04-28.
- How severe is CVE-2026-7233?
- Low severity. CVSS v3 base score is 3.3 out of 10.